RCA 14 s 7052 schematic
PHOTOFACT*
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er
DISASSEMBLY INSTRUCTIONS
CHASSIS
REMOVAL
1.
Remove 6 push-on type knobs
2.
Remove 3 metal
trim.
3.
Bend 2 tabs
glass.
4.
Remove 6 metal
5.
Remove
6.
Remove 1 metal
7.
Place
receiver
8.
Remove 3 chassis
9.
Lift
cabinet
10.
Remove 2 speaker
at top
speaker
off of
screws
of
screws
leads.
screw
front down
screws
chassis.
nuts
holding front
safety
glass
and
holding
on a
from
and
from
up and
remove
chassis
pad.
bottom.
remove
side
trim
rear
to
speaker.
of
cabinet.
and
remove
cover.
brace
remove
safety
at
top.
RCA
VICTOR MODELS
14-S-7O7O,
U,
14-S-7O52,
14-S-7O71,
U,
(Ch. KCS1O2B,
U,
14-S-7O74,
D)
U,
§i
TUNER
OSCILLATOR ADJUSTMENTS
Touch-up
may
fine
PICTURE
1.
and
2.
glass.
3.
glass.
FOCUS
Adjust
brightness.
adjustments
be
accomplished
tuning knobs.
TUBE SAFETY GLASS
Remove 3 metal
remove
trim.
Bend
up
tabs
at top of
Caution:
Use
only a soft cloth
Ion
trap
for
of the VHF
by
screws
best
SERVICING
tuner
removing
from bottom holding front
safety
focus
consistent
the
CLEANING
glass
and
and
water
oscillator
channel
remove
to
with maximum
circuit
selector
safety
clean
safety
IN THE
and
trim
MODEL
14-S-7052
HORIZONTAL
The
horizontal
of
the
chassis
Adjust
the
fuse
is
see
rings
two
rings
properly
horizontal
used
is
centered.
horizontally.
FUSES
One
location
CENTERING
Centering
magnetic
the
Is
CHASSIS
KCS102B
FIELD
OSCILLATOR FIELD ADJUSTMENT
frequency
and is
tube
accomplished
around
around
used
hold until
for
horlz.
placement
the
the
neck
coil
is
located
as the
horizontal
the
picture
sweep
circuit
chart.)
mechanically
neck
of the
of the
tube until
on the
hold
synchronizes
protection.
by
adjusting
picture
control
control.
tube.
the
picture
panel
(For
two
Rotate
£
o
i
m
JS
-*
a
K>
N
09
O
k.s
HOWARD
"The
listing
of any
available
case a recommendation, warranty
as
to the
qualify
parts
Inc.,
by the
"Reproduction
G794
and
have
been compiled from information furnished
manufacturers
or
suitability
use,
of the
without
replacement
or
of
such
particular
express
W.
part
herein does
guaranty
replacement
type
permission,
SAMS & CO., INC. • Indianapolis
not
constitute
by
Howard
part.
The
to
Howard
of
replacement part
of
editorial
W.
Sams & Co., Inc.,
numbers
of
W.
Sams & Co.,
listed."
or
pictorial
in any
these
con-
tent,
in any
manner,
the
use of the
Sams & Co., Inc., Indianapolis
ternational
Union
DATE
information
Copyright Union.
(1910)
by
4-57
Howard
is
prohibited.
W.
contained
5,
Indiana
No
patent
herein. Copyright
5,
Indiana,
All
Sams & Co.,
U. S. of
rights reserved under
Inc."
liability
America.
Printed
is
assumed
with respect
1957
by
Copyright under
Inter-American
in U. S. of
SET
Howard
W.
in-
Copyright
America
354
FOLDER
to
16
VHF
ANT.
TERMINAL
BOARD
^
MEASURED FROM
G SEE
PARTS
LIST
VALUE
OR
APPLICATION
DC
COIL RESISTANCE
SHOWN
ON
SCHEMATIC
ARROWS
ON
CONTROLS INDICATE CLOCKWISE
{CONTROL
VIEWED FROM SHAFT END)
WAVE
FORMS
SET TO
PEAK SIGNAL
TAKEN
PRODUCE
AT
PICTURE TUBE
ALTERNATE
TUNER
SCHEMATIC
LOCATED
ON
PIN 8 OF
FOR
ALTERNATE
VALUES
DIAGRAM,
WITH
CONTROLS
50
VOLTS PEAK-TO-
UHF-VHF
PAGE
VZ.
UNDER
10.
ONE OHM NOT
ROTATION
CHANNEL
SELECTOR SWITCH SHOWN
FINE
L
TUNING
*
©
9
75V
100K
H
H
IN
CHANNEL 2 POSITION
PAGE
1. DC
voltmeter;
per
2.
Pin
on
2
voltage
volt.
numbers
bottom
measurements
AC
of
taken
voltage
measured
are
counted
i n a
socket.
clockwise
5.
with vacuum tube
at
1,000 ohms
direction
A
Measured
3.
unl
Line
voltage
4.
All
controls
PHOTOFACT
O
Howird
values
are fr
tated.
ma
intained
at 117
for
normal
set
STANDARD
W.
S«mt A Co., Inc. 19S7
ocket
pin to
voltsfor
operation;
NOTATION
common negative
voltage
readings.
no
signal
applied,
SCHEMATIC
SOUND
V6)
IF
6AU6
39KIW
•240V
HORIZ
ii)
6DO6A
OUTPUT
DO
NOT
MEASURE
AUDIO OUTPUT
(re)6AQ5
RCA
VICTOR
14-S-7O71,
MODELS
U,
14-S-7O74,
(Viewed
adjacent
Center)
14-S-7O52,
U,
(Ch.
From Side (Viewed From Outside
To
Chassis
Edge
of
Chassisl
U,
14-S-7O7O,
KCS1O2B,
U,
D)
RCA
VICTOR
14-5-7071,
MODELS 1 4-S-7US2,
U,
14-S-7074, U (Ch.
M3IA
dOl
SISSVHD
U, I
4-b-/U/U,
KCS1O2B,
U,
D)
PAGE
4
CHASSIS
BOTTOM VIEW-CAPACITOR
At
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